Scientech Technologies Pvt. Ltd. Offers Power Quality Analyzer with Voltage, Current, and Frequency or Power Quality, PS4500. Scientech Technologies Pvt. Ltd. Is an ISO 9001:2000 certified company and is the manufacturer and supplier of test and measurement instruments. This Power Quality Analyzer with Voltage, Current, and Frequency provides an accurate measurement and it is safe to connect and easy to use. Salient features of this Power Quality Analyzer are as follows: